a Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou Industrial Park, Suzhou 215123, China
b School of Chemistry and Materials Science, Ludong University, Yantai 264025, China
Polym. Chem. 2014, 5, 37-42
This work describes RAFT polymerization with manganese(III) acetylacetonate (Mn(acac)3) as an initiator. Initiated by Mn(acac)3, RAFT polymerization of poly(vinyl acetate) was achieved at 80 °C mediated by a xanthate, methyl 2-(ethoxycarbonothioylthio)propanoate. The polymerization manifested good control at a low concentration of Mn(acac)3 (approximately 157 ppm). The polymer was endowed with a high chain end fidelity (97%), which was comparable or even better in comparison with the azobisisobutyronitrile-initiated polymerization. The polymerization behavior was revealed to comply with the features of a typical RAFT process. Successful Mn(acac)3-initiated RAFT polymerization of methyl methacrylate at 25 °C with a typical dithioester as a RAFT agent, and styrene at 100 °C with a dithiocarbamate as a RAFT agent demonstrated that Mn(acac)3 was a versatile and superior RAFT initiator.
链接： //pubs.rsc.org/en/content/articlelanding/2014/py/c3py00879g#!divAbstract
